国家/地区 中国（3）
IPC部 C（4） F（4）
IPC大类 C08（4）
IPC小类 F16J（4）
IPC F16J015/3284（3） C08L027/18（2） C08L061/16（2）
发明人
公开年 2022（4）
申请年 2021（2）  2022（2） 
专利权人

Preparing polytetrafluoroethylene composite rotary control head seal comprises molding mixed powder to obtain blank and sintering blank at high temperature to obtain polytetrafluoroethylene composite material, and performing mechanical processing and heat treatment.

LI Z, JIANG L, TANG M, LI S, LIANG Y, JIANG Y, REN W, DENG X, ZUO X, LIU X, YANG B, TANG G

Sealing device used in hub unit of automobile, has elastic member containing crosslinked nitrile rubber and grease.

KUSUNOKI K, UEMOTO T, YOSHIOKA Y

Bidirectional rotary seal structure for centrifuge shaft has a shaft sleeve, a dustproof lip, a sealing lip and a circlip, first O-shaped groove is axially opened on one side of the inside of the shaft sleeve and a dust lip is embedded at the position of the first O-shaped groove.

ZOU J, BAO Y

Preparing dynamic sealing material for sealing element, involves pressing and sintering the mixed powder, the mixed powder comprises a resin matrix, middle phase carbon microsphere and graphene coated hollow glass microsphere.

WANG G, WANG X, LI J, LUO G, ZHANG H, LIANG J, LI Y, ZHU Q, GUO J